PIC18F45K22-E/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip PIC18F45K22-E/PT is an 8-bit PIC18 microcontroller with 32KB Flash, 1536B RAM, and XLP low-power technology in a 44-pin TQFP package. Runs up to 64 MHz and operates down to 2.3V at 16 MHz for energy-constrained designs.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F45K22-E/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.6900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32KB Flash and 1536B RAM support complex firmware stacks in 8-bit embedded control applications
- 64 MHz maximum clock with XLP down to 2.3V at 16 MHz for battery-powered deployments
- Integrated ADC enables direct analog sensor sampling without external interface ICs
- 44-pin TQFP package provides rich I/O count while maintaining compact PCB footprint
- PIC18 CPU family with 8-year YTEOL ensures component availability for mid-lifecycle products
Applications
The PIC18F45K22-E/PT targets embedded control applications that need a balance of processing power, memory, and analog capability in a mid-range 8-bit package. It is well-suited for industrial sensor hubs, HVAC controllers, and consumer appliance motor drives where 32KB of program memory accommodates state machine firmware with multiple communication protocol handlers. The XLP low-power modes combined with 2.3V minimum supply support battery-backed designs such as portable data recorders and remote wireless sensor nodes.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES 2.3V MINIMUM SUPPLY AT 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 3 |
| Number of I/O Lines | 36 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP44,.47SQ,32 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1536 |
| RAM (words) | 1536 |
| ROM (words) | 32768 |
| ROM Programmability | FLASH |
| Speed | 48MHz |
| Supply Current-Max | 12mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| ## PIC18F45K22-E/PT Alternates Showing results | Image |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F45K22-E/PT:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 64MHz, CMOS, PQFP44
suggested
suggested
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RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 48MHz, CMOS, PQFP44
Frequently Asked Questions
How much program memory does PIC18F45K22-E/PT provide for multi-protocol firmware implementations?
The PIC18F45K22-E/PT includes 32 KB of Flash program memory paired with 1536 bytes of RAM, giving firmware developers sufficient space to implement multiple communication protocols such as UART, SPI, and I2C simultaneously alongside application logic. For comparison, simpler PIC18 variants with 8 KB Flash would struggle to accommodate both a Modbus RTU handler and a sensor acquisition state machine in the same firmware image.
At what supply voltage can PIC18F45K22-E/PT maintain 16 MHz operation in low-power designs?
The PIC18F45K22-E/PT operates at 16 MHz from a supply as low as 2.3V, enabling direct operation from a single-cell lithium battery that discharges from 4.2V to approximately 3.0V without a boost converter. This XLP operating point allows designers to budget for longer battery life in remote sensor nodes by reducing frequency during periods of low computational demand while maintaining reliable ADC conversions and peripheral communication.
For an industrial HVAC controller needing multiple I/O lines, how does the 44-pin TQFP package compare to 28-pin alternatives?
The 44-pin TQFP package of PIC18F45K22-E/PT provides significantly more I/O pins than 28-pin DIP or SOIC alternatives, allowing a single-chip solution to control multiple fan relays, read several temperature and humidity sensors via I2C and analog inputs, and drive an LCD or UART display interface simultaneously. Moving to a 28-pin package would typically require I/O expanders, increasing BOM cost and firmware complexity in HVAC designs with 6 or more controlled outputs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.7100 | $3.71 |
| 50+ | $3.4483 | $172.42 |
| 100+ | $3.1000 | $310.00 |
| 1000+ | $2.8500 | $2850.00 |
| 5000+ | $2.6900 | $13450.00 |
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